%0 Journal Article %1 PhysRevB.107.L201406 %A Könye, Viktor %A Mertens, Lotte %A Morice, Corentin %A Chernyavsky, Dmitry %A Moghaddam, Ali G. %A van Wezel, Jasper %A van den Brink, Jeroen %D 2023 %I American Physical Society %J Phys. Rev. B %K a b %N 20 %P L201406 %R 10.1103/PhysRevB.107.L201406 %T Anisotropic optics and gravitational lensing of tilted Weyl fermions %U https://link.aps.org/doi/10.1103/PhysRevB.107.L201406 %V 107 %X We show that tilted Weyl semimetals with a spatially varying tilt of the Weyl cones provide a platform for studying analogs to problems in anisotropic optics as well as curved spacetime. Considering particular tilting profiles, we numerically evaluate the time evolution of electronic wave packets and their current densities. We demonstrate that electron trajectories in such systems can be obtained from Fermat’s principle in the presence of an inhomogeneous, anisotropic effective refractive index. On the other hand, we show how the electron dynamics reveal gravitational features and use them to simulate gravitational lensing around a synthetic black hole. These results bridge optical and gravitational analogies in Weyl semimetals, suggesting different pathways for experimental solid-state electron optics

@article{PhysRevB.107.L201406, abstract = {We show that tilted Weyl semimetals with a spatially varying tilt of the Weyl cones provide a platform for studying analogs to problems in anisotropic optics as well as curved spacetime. Considering particular tilting profiles, we numerically evaluate the time evolution of electronic wave packets and their current densities. We demonstrate that electron trajectories in such systems can be obtained from Fermat’s principle in the presence of an inhomogeneous, anisotropic effective refractive index. On the other hand, we show how the electron dynamics reveal gravitational features and use them to simulate gravitational lensing around a synthetic black hole. These results bridge optical and gravitational analogies in Weyl semimetals, suggesting different pathways for experimental solid-state electron optics}, added-at = {2023-06-21T12:55:36.000+0200}, author = {Könye, Viktor and Mertens, Lotte and Morice, Corentin and Chernyavsky, Dmitry and Moghaddam, Ali G. and van Wezel, Jasper and van den Brink, Jeroen}, biburl = {https://www.bibsonomy.org/bibtex/21741a65cbb93eac3401324abde0a1cc6/ctqmat}, day = 23, description = {Anisotropic optics and gravitational lensing of tilted Weyl fermions}, doi = {10.1103/PhysRevB.107.L201406}, interhash = {8dde0d0e3ecabf0503c9fd1b419db141}, intrahash = {1741a65cbb93eac3401324abde0a1cc6}, journal = {Phys. Rev. B}, keywords = {a b}, month = {05}, number = 20, numpages = {7}, pages = {L201406}, publisher = {American Physical Society}, timestamp = {2023-06-21T12:55:36.000+0200}, title = {Anisotropic optics and gravitational lensing of tilted Weyl fermions}, url = {https://link.aps.org/doi/10.1103/PhysRevB.107.L201406}, volume = 107, year = 2023 }